An isosceles right triangle is composed of a right angle and two congruent acute angles. In this case, 90 + 2x = 180 where x is the acute angle. x is equal to 45 degrees. Using sine law, 8/sin 90 = y / sin 45 where y is the leg of the triangle. the leg's length is equal to 4 sqrt 2.
Answer:
1 + 3+ 4 = 180 then 3= 180-90-35 = 55 cd parrallel to ab then m2 = m4 =35